How to Wire Oil Pressure Gauge ?

[AMC86Kid]

I applied an air compressor to the sensor to fool it into thinking it’s on the engine 

 

and I finally got it on too

took forever

 

[Eagle]

So which terminal on the gauge goes where?

 

[AMC86Kid]

Bottom of the gauge goes to Batt. +

Top of gauge goes to the O.P.-Sender 

and the last prong (silver) goes to Batt. -